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Vacuum brazing defect description |
Vacuum brazing defect visual
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Vacuum brazing defect prevention measures |
vacuum brazing defect visual solution |
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Too much slag in vacuum brazing furnace, falling on the surface of the product |
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Increase frequency of empty furnace heating (without products) |
Vacuum brazing furnace heating frequency 1 / half months |
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Product surface spray copper, stick welding mold |
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Welding surface brush resistance flux |
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Vacuum brazing die has hard grain, surface hidden injury |
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Before the assembly with the brush to clean up the welding mould |
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Copper does not melt, the surface from the drum |
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Check the vacuum brazing furnace up and down the door, screen mouth, carbon rods carefully before vacuum brazing |
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The clamping ring is attached to the chip assembly, resulting in a sticky clamping ring
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The Assembly must ensure that there is a gap between the clamping ring and flange and chip components. |
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Product components with the gap is not good, resulting in white edge |
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Pressure margin to ensure that the gap ≤ 0.07 |
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The resistance flux is not dry. The surface is black after brazing |
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The flux must be dry before clamping |
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The vacuum brazing is uneven and causes the closure |
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Must ensure that the vacuum brazing welding pad flatness (with ruler check) |
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Vacuum brazing furnace partial pressure is insufficient, the product surface spray copper
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To ensure that the vacuum brazing furnace pressure between 200 ~ 250Pa |
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